Exam 44: Deploying Cisco Unified Contact Center Express

You are the lead network designer hired by Service Provider XYZ to deploy CoS functionality on the core MPLS network (P routers). The goal of the network design is to provide a complete CoS solution to all customers that purchase services such as dedicated Internet access, MPLS L3VPN, and L2VPN (pseudowire). Service Provider XYZ has these design requirements: - The network supports four service queues with equal treatment for delay, jitter, and packet loss. - Queues are numbered 0-3, where 0 is the default queue. - Three queues have one treatment. - One queue has either one or two treatments. If your design includes eight CoS queues on the Service Provider XYZ MPLS PE router ingress (CE facing) interface, how will customer traffic be classified as it enters the MLS P routers?

Refer to the exhibit. If IEEE 802.1w is in use for this network design, what are two locations where spanning-tree root can be placed to ensure the least-disruptive Layer 2 failover for clients within VLANs 3 and 4? (Choose two.)

Observe the following exhibit carefully. Router P4S-A receives a packet destined for loopback 10 on router P4S-D. Which path should this packet take on its way to the destination interface?

You are a network designer and have been asked to consult with your server operations team to further enhance the security of the network. The operations team provides you with these details about the network: - A pool of servers is accessed by numerous data centers and remote sites. - The servers are accessed via a cluster of firewalls. - The firewalls are configured properly and are not dropping traffic. - The firewalls occasionally cause asymmetric routing of traffic within the server data center. Which technology would you recommend to enhance security by limiting traffic that could originate from a hacker compromising a workstation and redirecting flows at the servers?

Tesla Radio GmbH is going to build a new research lab network based on a set of switches that would connect to their existing enterprise network. They are considering a design that would guarantee loop- free behavior within the set of switches. The design would also allow the group of switches to seem like a single switch to the enterprise network, because it is owned by a separate administrative group. Which Spanning Tree Protocol should be used to support the design requirements?

Refer to the exhibit. As the new network designer for a manufacturing company, you are designing this resilient Ethernet ring for the plant Ethernet network that is connected to the core, which does not use STP. Both edge ports are on the same switch in a ring segment. There is connectivity between the edge ports throughout the segment, so you create a redundant connection between any two switches in the ring. Which four options are characteristics of this design? (Choose four.)

You are identifying performance management requirements for a VoIP migration. What three key performance indicators would you use to track media quality? (Choose three.)

A planned EBGP network will use OSPF to reach the EBGP peer addresses. Which of these conditions should be avoided in the design that could otherwise cause the peers to flap continuously?

While reviewing an existing network design, you are discussing the characteristics of different STP versions. Which protocol minimizes unicast flooding during TCN in a Layer 2 switched network with many VLANs?

Refer to the exhibit. You are designing a loop-free hierarchical VPLS service. Which two design considerations should be implemented for the pseudowires between the N-PE and U-PE routers? (Choose two.)

While deploying IGP non-stop forwarding (NSF), which practice is the best for tuning routing protocol hello and dead timers?

When creating a network design, which one of these options provides for basic Layer 2 client isolation to prevent broadcast traffic exposure?

A company plans to use BFD between its routers to detect a connectivity problem inside the switched network. An IPS is transparently installed between the switches. Which packets should the IPS forward for BFD to work under all circumstances?

RSVP is short for Resource Reservation Protocol. Which statement is true about the RSVP protocol?

Refer to the exhibit. Company ABC is a Tier 3 service provider that offers Layer 2 and Layer 3 transport for small/medium enterprise customers in the US. Most of their network is built on Layer 2 MPLS circuits from a Tier 1 provider. Many Company ABC customers are using overlay VPN technologies and independent routing protocols, and they are affected with unacceptable convergence time after every major outage in the core of the Tier 1 provider. Which long-term redesign increases network availability?

You have multiple MPLS LSP domains that you want to internetwork. Your provider's backbone is IP. How to internetwork without disrupting the outlying MPLS domains or the provider?

You are the lead network designer hired by Service Provider XYZ to deploy CoS functionality on the core MPLS network (P routers). The goal of the network design is to provide a complete CoS solution to all customers that purchase services such as dedicated internet access, MPLS L3VPN, and L2VPN (pseudowire). Service Provider XYZ has these design requirements: How would you design your solution to map the DSCP value properly so that the traffic is assigned to the respective queues in the Service Provider XYZ MPLS core network?

You are designing a network that includes IP QoS. Which two architectures could be used to ensure that IP QoS is implemented properly? (Choose two.)

You are tasked with implementing a 1000-phone remote access solution, where phones will traverse a WAN edge router. Assuming all of the following features are supported in a hardware-assisted manner, which of the following will have the most detrimental impact on the delay of the packet?

Refer to the exhibit. The two Ethernet switches are in close proximity to each other. Assuming that the IGP timers have already been tuned for fast convergence, which additional change provides for the fastest network convergence time?